Four other crew members aboard a Puerto Rico Air National Guard cargo plane are missing

A U.S. military cargo plane with nine crew members on board crashed in Savannah, Ga., on Wednesday, erupting into a ball of fire, Pentagon officials said.

At least five crew members on the Puerto Rico Air National Guard flight were killed and four others are missing, a military official said. The Air Force, which acknowledged fatalities from the crash, said it would release their names after notifying the next of kin.